US4638898A - Clutch control system and clutch assembly using same - Google Patents
Clutch control system and clutch assembly using same Download PDFInfo
- Publication number
- US4638898A US4638898A US06/810,618 US81061885A US4638898A US 4638898 A US4638898 A US 4638898A US 81061885 A US81061885 A US 81061885A US 4638898 A US4638898 A US 4638898A
- Authority
- US
- United States
- Prior art keywords
- clutch
- control system
- speed
- signal
- modify
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000004044 response Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 4
- 230000031070 response to heat Effects 0.000 claims 3
- 230000001276 controlling effect Effects 0.000 description 9
- 230000035939 shock Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/1819—Propulsion control with control means using analogue circuits, relays or mechanical links
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/064—Control of electrically or electromagnetically actuated clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/027—Clutch torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/304—Signal inputs from the clutch
- F16D2500/30404—Clutch temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/304—Signal inputs from the clutch
- F16D2500/3042—Signal inputs from the clutch from the output shaft
- F16D2500/30421—Torque of the output shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/304—Signal inputs from the clutch
- F16D2500/3042—Signal inputs from the clutch from the output shaft
- F16D2500/30426—Speed of the output shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/306—Signal inputs from the engine
- F16D2500/3067—Speed of the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/308—Signal inputs from the transmission
- F16D2500/30806—Engaged transmission ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70402—Actuator parameters
- F16D2500/7041—Position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/706—Strategy of control
- F16D2500/70668—Signal filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D28/00—Electrically-actuated clutches
Definitions
- Clutch assemblies have been used for many years for engaging a vehicular transmission with an engine crankshaft to provide selected transmission gear ratios at preselected speed ranges for effective movement of the vehicle particularly under load.
- the desired engine speed is varied with the throttle pedal position so if the operator applies full throttle indicating a need for maximum starting torque, the desired engine speed is set near the peak torque of the engine.
- a light throttle position indicates a desire for slow maneuvering speed so the desired engine speed is set low.
- this control is deficient since it does not include the time rate of change of the desired engine speed to modify the clutch engagement.
- Suitable vehicle starting depends upon the value of a number of factors and their time rate of change. By letting these factors modify the desired engine speed and including the influence of their time rate of change by including the time rate of change of the difference between the desired engine speed and actual engine speed a simpler improved clutch engagement control is attained.
- FIG. 1 shows a block diagram of an embodiment of the control system of the invention
- FIG. 2 shows an embodiment of the block diagram of FIG. 1 further including one or more weighting factors
- FIG. 3 shows one embodiment of an electrical circuit suitable for providing the control system of the invention.
- FIG. 1 shows a generalized block diagram of the control system of the invention operative to control an actuator 2 in a manner enabling control of the rate at which the driven member of clutch assembly 4 engages the driver member, such as a crankshaft, of an engine (not shown).
- Actuator 2 is commonly a linear actuator that includes a motor, commonly a D.C. motor, that controls linear movement of the actuator in a manner determined by the nature of an electrical signal received by the motor.
- control system of the invention includes a first actual engine speed sensor member 6, such as as a magnetic pick-up device, that is operative with suitable electrical circuitry to provide a first output signal A corresponding to actual engine speed.
- the control system of the invention also includes a second desired engine speed sensor member 8 that is connected to a control device such as an adjustable accelerator pedal, that is operative to adjust desired engine speed.
- Sensor member 8 provides a second output signal "D" corresponding to the desired engine speed.
- Such signal is commonly provided by a variable potentiometer connected to the pedal.
- Signals A and D are received by comparator 10 which is operative to provide the difference signal (A-D) which is then delivered both to summer 16 and to a differentiator 14.
- Differentiator 14 may be any device suitable for providing an output signal ##EQU8## in response to receipt of an input signal (A-D).
- the control system of the invention may, where desired, include one or more weighting factors generally referred to as "K" for controlling the magnitude of signals A and D and the difference therebetween such as for example as expressed by the following equation and shown in FIG. 2: ##EQU10##
- weighting factors K 1 -K 4 may be unity.
- the weighting factors may for example be provided by a variable resistor such as resistor R4 in combination with a switching thyristor 25 shown in FIG. 3.
- the inclusion of weighting factors provides the advantage of enabling adjustment in the magnitude of either or both signals A and D and/or the difference therebetween which can be used to advantage by providing adjustment to the weight to the differentiated portion of the function signal.
- Any one of factors K 1 -K 4 can, of course, be adjusted to provide unity or be eliminated completely where suitable or additional weighting factors may be included in the function signal where desired.
- control means of the clutch control system of the invention may include means for providing at least one weighting factor for controlling the magnitude of the least one of the first and second signals and/or the difference therebetween preferably at least when the difference is differentiated with respect to time.
- the signals K 3 (K 1 A-K 2 D) and K 4 d(K 1 A dt -K 2 D) are received by summer 16 which is operative to sum the two to provide the output function signal which is received by actuator 2 which is operative to control the rate of engagement of clutch assembly 4 in the manner prescribed by the function signal.
- the initial condition is expressed by the signal (A-D) with A then approaching D over a finite period of time such that the quantity (A-D) and the quantity ##EQU11## both approach zero as signals A and D finally coincide.
- the control system actually acts as a dampening system by progressively slowing the rate at which the clutch engagement is made.
- control system of the invention operates only upon the error signal (A-D) and its differential with respect to time which is highly accurate by limiting its operation only upon the error signal in the manner herein described.
- Another advantage of the control system of the invention is that by operating on the time rate of change of the error signal (A-D) which is ##EQU12## the rate of engagement of the clutch responds to the time rate of changing conditions which modify D, the desired engine speed.
- the desired engine speed D may be modified by a microprocessor control responsive to various conditions according to predetermined formula or relationships to vary the rate of clutch engagement to eliminate undesirable impact shock and undue damage and wear on the clutch as well as other parts of the drivetrain.
- the clutch rate of engagement should be slow until backlash has been taken out of the vehicle's drivetrain. This may be accomplished by keeping the desired engine speed near the actual engine speed until the clutch driven member rotates thus indicating the vehicle is moving.
- the clutch torque and rate of clutch engagement torque are multiplied by the transmission gear ratio so with lower gear ratios and more torque multiplication, it is advisable for smooth starts to have a slower rate of clutch engagement which can be accomplished by having lower desired engine speed in lower gear ratios. Decreasing the clutch slip or the difference between engine driver member and clutch driven member indicates the vehicle is started and is accelerating, so desired engine speed and rate of clutch engagement can be increased for quicker engagement and lower clutch heating.
- the clutch slip speed difference between actual engine speed and clutch driven member speed, multiplied by an indication of the clutch torque and summed or integrated over time will give an indication of the total heat generated in the clutch during a vehicle start. In order to prevent heat damage and excessive wear to the clutch, this summation of heat generated may be used to increase the desired engine speed to increase the rate of clutch engagement before heat generated is excessive.
- the indication of clutch torque can be simply the throttle pedal position or the engine fuel control position or calculated by a microprocessor from engine throttle position and speed minus the torque required to accelerate the engine. Other clutch torque indications are possible within the spirit of the invention.
- a further advantage of the control system of the invention is that having the rate of clutch engagement responsive to the time rate of change of the error signal (A-D) there is less overshoot and oscillation of the actual engine speed about the desired engine speed and the vehicle speed change is consequently smoother.
- control system of the invention may be either hydraulic or electrical in nature or combinations of the two, it is preferably electrical of which one preferred embodiment of electrical circuit means suitable for control system of the invention is shown in FIG. 3.
- the resistors R 1 through R 8 and capacitors c 1 through c 3 can be selected by means well known to those ordinarily skilled in the art of electrical signal circuitry to provide the magnitude and quality of the output function signal desired.
- the clutch control system of the invention includes embodiments where the control means includes means to modify the second signal in a predetermined manner such as by including means to modify the second signal in relationship to the clutch driven member speed as well as means to modify the second signal in relationship to the particular gear ratio engaged in a transmission connected to the clutch driven member and/or where the control means including means to modify the second signal in relationship to the difference between actual engine speed and the clutch driven member speed and/or as previously described, when the control means includes means to modify the second signal in relationship to heat generated in the clutch and/or wherein the control means includes means to modify the second signal in relationship to the difference between the actual engine speed and the clutch driven member speed times the clutch torque indication integrated over time.
- engine speed sensor 18 such as a magnetic field pick-up and suitable electrical circuitry, provides a voltage signal to amplifier 20 which in turn provides a negative output voltage signal "-A" corresponding to the negative of actual engine speed.
- a throttle position sensor member 22 such as a variable rheostat or potentiometer operated by the accelerator pedal provides a voltage signal "D" corresponding to the desired engine speed according to the position of the pedal.
- Voltage signals "-A” and “D” are received by the summing input terminals of amplifier 24 which provides voltage output signal (A-D) which is delivered both to summing junction 28 and to variable resistor or potentiometer R 4 and switching thyristor 25 to provide voltage signal K(A-D) which is then received by differentiating amplifier 26 which provides an output voltage signal corresponding to ##EQU13## which is delivered to summer 28 which sums the two to provide output function signal ##EQU14## which is received by actuator 30 which is operative to control the engagement of clutch assembly 32 in the manner prescribed by the function signal voltage.
- the clutch control system of the invention is preferably D.C. signal control which is delivered to a suitable D.C. motor operatively connected to the actuator.
- the clutch control system of the invention may include filters, shapers and other components where the control system is electrical to provide the shape, amplitude and quality of function signal desired.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/810,618 US4638898A (en) | 1985-12-19 | 1985-12-19 | Clutch control system and clutch assembly using same |
CA000522590A CA1280815C (en) | 1985-12-19 | 1986-11-10 | Clutch control system and clutch assembly using same |
DE8686115775T DE3667770D1 (de) | 1985-12-19 | 1986-11-13 | Kupplungssteuersystem und dieses verwendende kupplung. |
EP86115775A EP0228544B1 (en) | 1985-12-19 | 1986-11-13 | Clutch control system and clutch assembly using same |
ES86115775T ES2012338B3 (es) | 1985-12-19 | 1986-11-13 | Sistema de control del agarre y conjunto para lo cual. |
IN897/CAL/86A IN166618B (es) | 1985-12-19 | 1986-12-09 | |
JP61295703A JP2551420B2 (ja) | 1985-12-19 | 1986-12-11 | クラツチ制御装置 |
KR1019860010797A KR900006596B1 (ko) | 1985-12-19 | 1986-12-17 | 클러치 제어장치와 그것을 사용하는 클러치 조립체 |
MX4691A MX160652A (es) | 1985-12-19 | 1986-12-17 | Mejoras en sistema de control para embrague |
CN86108241.9A CN1006149B (zh) | 1985-12-19 | 1986-12-18 | 离合器控制系统和使用该系统的离合器总成 |
BR8606575A BR8606575A (pt) | 1985-12-19 | 1986-12-19 | Sistema de controle de embreagem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/810,618 US4638898A (en) | 1985-12-19 | 1985-12-19 | Clutch control system and clutch assembly using same |
Publications (1)
Publication Number | Publication Date |
---|---|
US4638898A true US4638898A (en) | 1987-01-27 |
Family
ID=25204252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/810,618 Expired - Lifetime US4638898A (en) | 1985-12-19 | 1985-12-19 | Clutch control system and clutch assembly using same |
Country Status (11)
Country | Link |
---|---|
US (1) | US4638898A (es) |
EP (1) | EP0228544B1 (es) |
JP (1) | JP2551420B2 (es) |
KR (1) | KR900006596B1 (es) |
CN (1) | CN1006149B (es) |
BR (1) | BR8606575A (es) |
CA (1) | CA1280815C (es) |
DE (1) | DE3667770D1 (es) |
ES (1) | ES2012338B3 (es) |
IN (1) | IN166618B (es) |
MX (1) | MX160652A (es) |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4793454A (en) * | 1987-03-13 | 1988-12-27 | Borg-Warner Automotive, Inc. | Continuously variable transmission clutch control system |
US4807132A (en) * | 1985-07-15 | 1989-02-21 | Diesel Kiki Co., Ltd. | Apparatus for controlling an internal combustion engine for vehicles |
US4807130A (en) * | 1986-12-24 | 1989-02-21 | Motorola, Inc. | Servo control system for transmission shaft speed control |
US4821190A (en) * | 1986-05-27 | 1989-04-11 | Ford Motor Company | Closed loop computer control for an automatic transmission |
US4831985A (en) * | 1988-02-17 | 1989-05-23 | Mabee Brian D | Throttle control system |
US4860863A (en) * | 1987-06-04 | 1989-08-29 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus for controlling a clutch of a vehicle |
US4867287A (en) * | 1986-06-20 | 1989-09-19 | Toyota Jidosha Kabushiki Kaisha | Control method for magnetic powder clutch |
US4873637A (en) * | 1988-02-10 | 1989-10-10 | Eaton Corporation | Control for vehicle start from stop operation |
US4883037A (en) * | 1988-02-17 | 1989-11-28 | Automotive Products Plc | Throttle control system |
US4898049A (en) * | 1986-07-07 | 1990-02-06 | Nissan Motor Co., Ltd. | Electro-hydraulic control for reducing engagement shock in an automatic transmission |
US5010989A (en) * | 1989-10-17 | 1991-04-30 | Borg-Warner Automotive, Inc. | Clutch control for high-response continuously variable transmission |
US5383823A (en) * | 1993-06-10 | 1995-01-24 | Eaton Corporation | Clutch control |
EP0702170A2 (en) | 1994-09-19 | 1996-03-20 | Eaton Corporation | Clutch reengagement control |
EP0709246A2 (en) | 1994-10-24 | 1996-05-01 | Eaton Corporation | Automated clutch control and calibration |
US5529548A (en) * | 1995-01-09 | 1996-06-25 | Eaton Corporation | Vehicle launch engine fuel control |
EP0834669A2 (en) | 1996-08-28 | 1998-04-08 | Eaton Corporation | Actuator system for vehicular automated clutches with electric motor actuator and pressurized fluid override |
US6035734A (en) * | 1995-04-03 | 2000-03-14 | Magneti Marelli France | Control system imposing automatic mode absent driver manual shift request |
US6171212B1 (en) * | 1997-08-26 | 2001-01-09 | Luk Getriebe Systeme Gmbh | Method of and apparatus for controlling the operation of a clutch in the power train of a motor vehicle |
US20040150360A1 (en) * | 2003-01-22 | 2004-08-05 | Siemens Aktiengesellschaft | Method for enhancing the control response of a drive train having backlash and/or elasticity of a machine tool or production machine |
EP1449708A1 (en) * | 2003-02-21 | 2004-08-25 | BorgWarner Inc. | Method of controlling a dual clutch transmission |
US20050109141A1 (en) * | 2003-11-25 | 2005-05-26 | Devore James H. | Automated mechanical transmission system |
US20090095255A1 (en) * | 2004-12-20 | 2009-04-16 | Renault S.A.S. | Method for assisting in starting a motor vehicle and corresponding device |
WO2009074486A1 (de) * | 2007-12-13 | 2009-06-18 | Zf Friedrichshafen Ag | Verfahren zum betreiben eines antriebsstrangs eines kraftfahrzeugs |
US20100000835A1 (en) * | 2008-07-01 | 2010-01-07 | Tom Connolly | Fault tolerant clutch actuator |
US20100004837A1 (en) * | 2008-07-01 | 2010-01-07 | Tom Connolly | Automatic calibration of the torque transfer touch point in an electrically actuated clutch in a hybrid vehicle |
CN1748098B (zh) * | 2003-02-08 | 2011-05-11 | Zf腓德烈斯哈芬股份公司 | 用于控制和调节自动变速器的变速器制动器的方法 |
DE4443652B4 (de) * | 1994-12-08 | 2012-01-19 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
US9939032B1 (en) * | 2017-01-26 | 2018-04-10 | Ford Global Technologies, Llc | Method of controlling a transmission clutch |
CN112188970A (zh) * | 2018-05-23 | 2021-01-05 | 传输Cvt股份有限公司 | 控制离合器的接合速率 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3737899A1 (de) * | 1987-11-07 | 1989-08-03 | Sachs Systemtechnik Gmbh | Vorrichtung zur automatischen betaetigung einer reibungskupplung |
US5136897A (en) * | 1991-05-09 | 1992-08-11 | Eaton Corporation | Smooth upshift control method/system |
US5275267A (en) * | 1991-10-07 | 1994-01-04 | Eaton Corporation | Closed loop launch and creep control for automatic clutch with robust algorithm |
US5293316A (en) * | 1991-10-07 | 1994-03-08 | Eaton Corporation | Closed loop launch and creep control for automatic clutch |
ES2161306T3 (es) * | 1995-03-03 | 2001-12-01 | Bayerische Motoren Werke Ag | Dispositivo de mando para regular el proceso de cierre de un embrague de separacion para vehiculos automoviles. |
DE19809060A1 (de) | 1998-03-04 | 1999-09-09 | Zahnradfabrik Friedrichshafen | Verfahren zur Steuerung von schaltbaren Kupplungen zum Zweck des Anfahrens und Schaltens von Wechselgetrieben in Kraftfahrzeugen |
CN107735298B (zh) * | 2015-05-14 | 2020-08-25 | 伊顿智能动力有限公司 | 用于对开启/关闭公路车辆进行低速定位和定速的控制系统 |
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US4807132A (en) * | 1985-07-15 | 1989-02-21 | Diesel Kiki Co., Ltd. | Apparatus for controlling an internal combustion engine for vehicles |
US4821190A (en) * | 1986-05-27 | 1989-04-11 | Ford Motor Company | Closed loop computer control for an automatic transmission |
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EP0702170A2 (en) | 1994-09-19 | 1996-03-20 | Eaton Corporation | Clutch reengagement control |
US5634867A (en) * | 1994-09-19 | 1997-06-03 | Eaton Corporation | Main clutch reengagement control for a double clutch downshift |
EP0709246A2 (en) | 1994-10-24 | 1996-05-01 | Eaton Corporation | Automated clutch control and calibration |
US5624350A (en) * | 1994-10-24 | 1997-04-29 | Eaton Corporation | Automated clutch control and calibration |
DE4443652B4 (de) * | 1994-12-08 | 2012-01-19 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
US5529548A (en) * | 1995-01-09 | 1996-06-25 | Eaton Corporation | Vehicle launch engine fuel control |
US6035734A (en) * | 1995-04-03 | 2000-03-14 | Magneti Marelli France | Control system imposing automatic mode absent driver manual shift request |
EP0834669A2 (en) | 1996-08-28 | 1998-04-08 | Eaton Corporation | Actuator system for vehicular automated clutches with electric motor actuator and pressurized fluid override |
US6171212B1 (en) * | 1997-08-26 | 2001-01-09 | Luk Getriebe Systeme Gmbh | Method of and apparatus for controlling the operation of a clutch in the power train of a motor vehicle |
US7005826B2 (en) * | 2003-01-22 | 2006-02-28 | Siemens Aktiengesellschaft | Method for enhancing the control response of a drive train having backlash and/or elasticity of a machine tool or production machine |
US20040150360A1 (en) * | 2003-01-22 | 2004-08-05 | Siemens Aktiengesellschaft | Method for enhancing the control response of a drive train having backlash and/or elasticity of a machine tool or production machine |
CN1748098B (zh) * | 2003-02-08 | 2011-05-11 | Zf腓德烈斯哈芬股份公司 | 用于控制和调节自动变速器的变速器制动器的方法 |
EP1449708A1 (en) * | 2003-02-21 | 2004-08-25 | BorgWarner Inc. | Method of controlling a dual clutch transmission |
US20050109141A1 (en) * | 2003-11-25 | 2005-05-26 | Devore James H. | Automated mechanical transmission system |
US20090095255A1 (en) * | 2004-12-20 | 2009-04-16 | Renault S.A.S. | Method for assisting in starting a motor vehicle and corresponding device |
US7640097B2 (en) * | 2004-12-20 | 2009-12-29 | Renault S. A. S. | Method for assisting in starting a motor vehicle and corresponding device |
WO2009074486A1 (de) * | 2007-12-13 | 2009-06-18 | Zf Friedrichshafen Ag | Verfahren zum betreiben eines antriebsstrangs eines kraftfahrzeugs |
US20100004837A1 (en) * | 2008-07-01 | 2010-01-07 | Tom Connolly | Automatic calibration of the torque transfer touch point in an electrically actuated clutch in a hybrid vehicle |
US20100000835A1 (en) * | 2008-07-01 | 2010-01-07 | Tom Connolly | Fault tolerant clutch actuator |
US8116956B2 (en) | 2008-07-01 | 2012-02-14 | Eaton Corporation | Fault tolerant clutch actuator |
US8738256B2 (en) | 2008-07-01 | 2014-05-27 | Eaton Corporation | Automatic calibration of the torque transfer touch point in an electrically actuated clutch in a hybrid vehicle |
US9939032B1 (en) * | 2017-01-26 | 2018-04-10 | Ford Global Technologies, Llc | Method of controlling a transmission clutch |
CN112188970A (zh) * | 2018-05-23 | 2021-01-05 | 传输Cvt股份有限公司 | 控制离合器的接合速率 |
EP3797046A4 (en) * | 2018-05-23 | 2022-03-09 | Transmission CVT Corp Inc. | CONTROL THE ENGAGEMENT SPEED OF A CLUTCH |
US11401987B2 (en) | 2018-05-23 | 2022-08-02 | Transmission Cvtcorp Inc. | Control of the engagement rate of a clutch |
Also Published As
Publication number | Publication date |
---|---|
ES2012338B3 (es) | 1990-03-16 |
DE3667770D1 (de) | 1990-02-01 |
CN1006149B (zh) | 1989-12-20 |
KR900006596B1 (ko) | 1990-09-13 |
JPS62203829A (ja) | 1987-09-08 |
CA1280815C (en) | 1991-02-26 |
IN166618B (es) | 1990-06-16 |
KR870005844A (ko) | 1987-07-07 |
JP2551420B2 (ja) | 1996-11-06 |
CN86108241A (zh) | 1987-08-26 |
EP0228544A1 (en) | 1987-07-15 |
MX160652A (es) | 1990-04-05 |
EP0228544B1 (en) | 1989-12-27 |
BR8606575A (pt) | 1987-10-20 |
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